池塘封闭循环水养殖废水脱氮的试验研究唐天乐

唐天乐1,唐文浩2(1,,570228;2,570228):确定封闭循环水养殖池塘系统对养殖水体的脱氮能力。循环净水系统主要有生物合成固氮、污泥吸附分离脱氮、光化学脱氮、微生物脱氮、物理脱氮等环节,采用海洋监测国家标准方法对系统中的南美白对虾(Penaeusvannamei)养殖水体进行跟踪监测。结果表明:系统对养殖水体中硝酸盐氮、亚硝酸盐氮和氨氮的去除率分别为10.37%～27.35%、22.45%～44.74%和22.00%～79.53%,脱氮解毒效果较好。:封闭循环水养殖;光化学;养殖废水脱氮;池塘养殖:S969.38:A:1007-9580(2009)05-14-05:2009-06-18;:2009-09-23:(2006EA800018);(80515):(1985—),,,:,。E-mail:[e-mail]:(1956—),,,。E-mail:[e-mail]　　,。。。,,,[1-3]。,,。1　1.1　、、、165.0m1.5m0.3m165.0m1.2m。,0.5hm2,1.5～1.8m,41.1kW。,。,,。60m3/h,,0.5h(1、2)。,、、。(Penaeusvannamei),90d,35d。1.2　。,3h,7d。《》(GB17378—1998)[4]。:(T)、(DO)(YSI550A,),pH(MX300X-matepro,),(NO3--N)(,GB17378.4—1998),(NO2--N)(,GB17378.4—1998),(NH3-N)(,GB17378.4—1998)。2　2.11,14《》2009365　1Fig.1Schematicdiagramofaninnovativeclosedrecirculatingaquaculturepond2Fig.2Flowchartofwaterpurificationprocessinclosedrecirculatingaquaculturepond　　。NH3-N,。。1　　　　　　　　Tab.1RemovalefficiencyofNO3--N,NO-2-NandNH-3-N　　　　　mg/L　NO3--NNO2--NNH-3-N0.4190～0.55750.0550～0.15260.1632～0.43550.3705～0.43250.0218～0.04880.0337～0.2775(%)10.37～27.3522.45～44.7422.00～79.532.2NO3--N,、。,,NO3--N。NO3--N,NO3--N,(3)。3NO3--NFig.3DiurnalvariationsofNO3--NNO2--N,、。、,(20:00—23:00)NO2--N,NO2--N(4)。4NO-2-NFig.4DiurnalvariationsofNO-2-NNH3-N,。NH3-N,(5)。5NH3-NFig.5DiurnalvariationsofNH3-N15《》2009365　NH3-N,,NO3--N、NO2--N(6)。,NO3--N、NO2--N、NH3-N,。。2.36、7,。20:007:00,DO,;8:0019:00,DO;,DO,。6NO3--N、NO2--N、NH3-NFig.6DiurnalvariationsofremovalratesofNO3--N,NO2--NandNH3-N7Fig.7Wastewaterdenitrificationandoxygen-addedefficiencyofthedevice　　Draper[5],,(λ285nm),(1.5μmol/L)6.8μmol/L,30μmol/L。,,(),0.5h(10:00—10:30)。,,。Draper。2。2(H2O2)Tab.2TheinfluenceofsolarrayradiationtoH2O2inthewastewaterH2O2(mg/L)()322.041.893.757.612.132.374.5712.85H2O20.090.480.825.2433.1,4:、、[6-8]。16《》2009365　(Dis-solvedOrganicMatter,DOM)。NO-3、NO-2(N2O、NO)、(·OH)。、,(·OH)[9-10]。,,;。。,(NH3-N)(NH3)(NH+4)2,、、pH。,(HCO-3),pH,NH3。pH、NH+4-NNH3。,,,。3.2,。,,,,。,,,,10～20cm。,COD、COD,。,NO-3-N、NO-2-NNH3-N。DO,(、、、)。。。,,,。,,,,。4(1)N、P,,。(2),,。(3)、,。(4),,,,,“”“”。◆[1],,,.[M].:,2007.[2],,,.[J].,2006,25(5):18-23.[3],,,.[J].,2007,34(4):19-21.17《》2009365　[4].(GB17378—1998)[M].:,1998.[5]DRAPERWM,CROSBYDG.Thephotochemicalgenerationofhydrogenperoxideinnaturalwaters[J].ArchivesofEnvironmen-talContaminationandToxicology,1983,12(1):121-126.[6],,,.[J].,2003,16(6):18-20.[7]WEBSTEREA,HOPKINSDW.Contributionsfromdifferanti-microbialprocesstoN2Oemissionfromsoilunderdifferentmois-tureregimes[J].BiologyFertilityofsoils,1996,22:331-335.[8]VERSTRAETEW,PHILIPSS.Nitrificationdenitrificationprocessandtechnologiesinnewcontexts[J].EnvironmentalPol-lution,1998,102:717-726.[9],.[J].,2004,23(2):73-81.[10],,.[J].,2004,5(10):14-19.ExperimentalstudyonwastewaterdenitrificationinclosedrecirculatingaquaculturesystemTANGTian-le1,TANGWen-hao2(1KeyLaboratoryofTropicBiologicalResourcesofMinistryofEducation,CollegeofOcean,HainanUniversity,Haikou570228,China;2CollegeofEnvironmentandPlantProtection,HainanUniversity,Haikou570228,China)Abstract:Wedotheexperimentsinordertodetermineanewclosedcycleaquaculturepondsystemfornitro-genremovalcapacityofaquaculturewater,andprovidethebasicdataforpromotingthissystem.Usingofthenationalstandardmethodonmarinemonitoring,wedothetracingmonitorbythewaterintheclosedrecirculat-ingwatersystemforPenaeusvannamei.Thestudieshaveshowedthatthedenitrificationofthissystemhadagoodeffect,asthenitratenitrogen,nitritenitrogenandammonianitrogenremovalratesintheaquaculturepondwere10.37%-27.35%,22.45%-44.74%,22.00%-79.53%.Theconclusionisthatthedenitri-ficationeffectisobviousbyusingthenewtypeofclosedrecirculatingwateraquaculturepondsystem.Asanewworkablemodel,thenewtypesystemachieveszeropollutionand“zeroemission”ofaquiculture,andhasthesignificanceofrealizingthesustainabledevelopmentofaquacultureindustry.Keywords:closedrecirculatingaquaculturesystem;photochemistry;aquaculturewastewaterdenitrification;pondcultivation　　(上接第3页)[5],,,.[J].,2009(1):65-66.[6]..(2008)113[EB/OL].:,2008(2008-10-17)[2009-06-20].[6].21[M].:,1999:158-159.DevelopmentreportofChina'sfishingportengineeringdisciplines(2002-2008)SUNLong(InstituteofFisheriesEngineering,ChineseAcademyofFisherySciences,Beijing100141,China)Abstracts:TheengineeringofChina'sfishingportsinrecentyears(2002-2008)isanimportantresearchre-sults,aswellasthefishingportengineeringmajorissuesfacingtheproposeddisciplinary,focusonresearchdirectionsandrecommendations.Keywords:fishingport;engineering;researchdirection18《》2009365